Coordinated access point channelization for transmission opportunity sharing

Abstract

Coordinated Frequency Division Multiplexing (FDM) Transmission Opportunity (TXOP) sharing may be provided by determining that at least two Access Points (APs) of a wireless network support coordinated FDM TXOP sharing. In response to the determination that the at least two APs support coordinated FDM TXOP sharing, at least one of: a first bias is applied to a channel assignment algorithm to promote an assignment of overlapping channels of the at least two APs, and a second bias is applied to the channel assignment algorithm to promote an assignment of adjacent channels of the at least two APs. Next, channels are assigned to the at least two APs based on an output of the channel assignment algorithm.

What is claimed is: 
     
       1. A system comprising:
 a processing unit; and 
 memory storage that includes instructions which, when executed by the processing unit, causes the processing unit to:
 determine that at least two Access Points (APs) of a wireless network support coordinated Frequency Division Multiplexing (FDM) Transmission Opportunity (TXOP) sharing; 
 in response to the determination that the at least two APs support coordinated FDM TXOP sharing, apply at least one of:
 a first bias to a channel assignment algorithm to promote an assignment of overlapping channels of the at least two APs; and 
 a second bias to the channel assignment algorithm to promote an assignment of adjacent channels of the at least two APs; 
 
 assign channels to the at least two APs based on an output of the channel assignment algorithm; and 
 determine that at least one AP of the at least two APs supports a radio configuration with a Receiver (RX) bandwidth greater than a Transmitter (TX) bandwidth; and 
 configure the radio configuration of the at least one AP to include the RX bandwidth greater than the TX bandwidth. 
 
 
     
     
       2. The system of  claim 1 , wherein the processing unit is further caused to adjust at least one of the first bias or the second bias to account for a number of clients associated with each of the at least two APs. 
     
     
       3. The system of  claim 2 , wherein the processing unit is further caused to execute the channel assignment algorithm to determine a score for each channel to be assigned to each AP that supports coordinated FDM TXOP sharing, wherein the score is a function of predicted or observed FDM TXOP sharing gains. 
     
     
       4. The system of  claim 3 , wherein the predicted FDM TXOP sharing gains correspond with availability of an overlapping channel or an adjacent channel of one or more APs that support coordinated FDM TXOP sharing relative to a channel of an AP that supports coordinated FDM TXOP sharing being considered for a channel assignment. 
     
     
       5. The system of  claim 1 , wherein the processing unit is further caused to:
 assign a delegator role to at least one AP of the at least two APs; 
 
       determine at least one neighboring AP that supports coordinated FDM TXOP sharing relative to the AP having the delegator role; and
 determine availability of an overlapping channel or an adjacent channel of the at least one neighboring AP based on a channel of the at least one AP having the delegator role. 
 
     
     
       6. The system of  claim 5 , wherein the channel of the at least one AP having the delegator role includes a channel bandwidth that is greater than a channel bandwidth used by the at least one neighboring AP. 
     
     
       7. The system of  claim 1 , wherein the processing unit is further caused to: determine at least one neighboring AP that supports coordinated FDM TXOP sharing relative to the at least one AP having the RX bandwidth greater than the TX bandwidth; and determine availability of an overlapping channel or an adjacent channel of the at least one neighboring AP based on a channel of the at least one AP having the RX bandwidth greater than the TX bandwidth. 
     
     
       8. The system of  claim 1 , wherein the processing unit is further caused to: determine that there is at least one neighboring AP that supports a radio configuration with a RX bandwidth greater than a TX bandwidth relative to the at least one AP having the RX bandwidth greater than the TX bandwidth; and determine a predicted TXOP sharing gain based on an amount of RX bandwidth or an amount of TX bandwidth available to the at least one neighboring AP and the at least one AP. 
     
     
       9. A method comprising:
 determining that at least two Access Points (APs) of a wireless network support coordinated Frequency Division Multiplexing (FDM) Transmission Opportunity (TXOP) sharing; 
 in response to the determination that the at least two APs support coordinated FDM TXOP sharing, applying at least one of:
 a first bias to a channel assignment algorithm to promote an assignment of overlapping channels of the at least two APs; and 
 a second bias to the channel assignment algorithm to promote an assignment of adjacent channels of the at least two APs; 
 
 assigning channels to the at least two APs based on an output of the channel assignment algorithm; 
 determining that at least one AP of the at least two APs supports a radio configuration with a Receiver (RX) bandwidth greater than a Transmitter (TX) bandwidth; and 
 configuring the radio configuration of the at least one AP to include the RX bandwidth greater than the TX bandwidth. 
 
     
     
       10. The method of  claim 9 , further comprising adjusting at least one of the first bias or the second bias to account for a number of clients associated with each of the at least two APs. 
     
     
       11. The method of  claim 9 , further comprising executing the channel assignment algorithm as part of determining a score for each channel to be assigned to each AP that supports coordinated FDM TXOP sharing, wherein the score is a function of predicted or observed FDM TXOP sharing gains. 
     
     
       12. The method of  claim 11 , wherein the predicted FDM TXOP sharing gains correspond with availability of an overlapping channel or an adjacent channel of one or more APs that support coordinated FDM TXOP sharing relative to a channel of an AP that supports coordinated FDM TXOP sharing being considered for a channel assignment. 
     
     
       13. The method of  claim 9 , further comprising:
 assigning a delegator role to at least one AP of the at least two APs; 
 determining at least one neighboring AP that supports coordinated FDM TXOP sharing relative to the AP having the delegator role; and 
 determining availability of an overlapping channel or an adjacent channel of the at least one neighboring AP based on a channel of the at least one AP having the delegator role, wherein the channel of the at least one AP having the delegator role includes a channel bandwidth that is greater than a channel bandwidth used by the at least one neighboring AP. 
 
     
     
       14. The method of  claim 9 , further comprising: 
       determining at least one neighboring AP that supports coordinated FDM TXOP sharing relative to the at least one AP having the RX bandwidth greater than the TX bandwidth; and determining availability of an overlapping channel or an adjacent channel of the at least one neighboring AP based on a channel of the at least one AP having the RX bandwidth greater than the TX bandwidth. 
     
     
       15. A non-transitory computer-readable medium that stores a set of instructions which when executed perform a method executed by the set of instructions comprising:
 determining that at least two Access Points (APs) of a wireless network support coordinated Frequency Division Multiplexing (FDM) Transmission Opportunity (TXOP) sharing; 
 in response to the determination that the at least two APs support coordinated FDM TXOP sharing, applying at least one of:
 a first bias to a channel assignment algorithm to promote an assignment of overlapping channels used by the at least two APs; and 
 a second bias to the channel assignment algorithm to promote an assignment of adjacent channels of the at least two APs; 
 
 assigning channels to the at least two APs based on an output of the channel assignment algorithm; 
 determining that at least one AP of the at least two APs supports a radio configuration with a Receiver (RX) bandwidth greater than a Transmitter (TX) bandwidth; and 
 configuring the radio configuration of the at least one AP of the at least two APs to include the RX bandwidth greater than the TX bandwidth. 
 
     
     
       16. The non-transitory computer-readable medium of  claim 15 , further comprising adjusting at least one of the first bias or the second bias to account for a number of clients associated with each of the at least two APs. 
     
     
       17. The non-transitory computer-readable medium of  claim 15 , further comprising:
 assigning a delegator role to at least one AP of the at least two APs; 
 
       determining at least one neighboring AP that supports coordinated FDM TXOP sharing relative to the AP assigned the delegator role; and
 determining availability of an overlapping channel or an adjacent channel of the at least one neighboring AP based on a channel of the at least one AP having the delegator role.